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20 Jan
2009
20 Jan
'09
4:26 p.m.
I'm just learning about XMP (Extensible Metadata Platform) which Luigi mentioned, but it doesn't really look like it contains the information you mention (although you can apparently add all sort of metadata, including images).
yes and XMP is not only for pdf : http://labs.adobe.com/technologies/xmplibrary/ -- luigi